<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>test</title>
    <style>
        *
        {
            box-sizing: border-box;
        }
        html,body
        {
            margin: 0;
            padding: 0;
            border: 0;
        }
    </style>
    <meta name="viewport" content="width=640,minimum-scale=0.5,maximum-scale=0.5,initial-scale=0.5" />

</head>
<body>

<header>
    <div style="background: #F5F5F5;width: 100%;height: 100px;position: relative;margin: -40px auto">

        <img style="float: left;position: absolute;top: 20px" src="images/icon_back_n.png" alt=""/>
        <!--<div class="h1" style="width: 200px;height: 100px;font-size: 40px;margin: 0 auto"> <span >购物车</span></div>-->
      <span style="font-size: 40px;text-align: center;line-height: 100px;display: block;vertical-align: middle"><p style="text-align: center;vertical-align: middle;">购物车</p></span>
        <img style="width: 50px;height: 50px;float: right;position: absolute;top: 20px;right: 10px" src="images/search.png" alt=""/>
    </div>

</header>
</body>
</html>